522804 has 24 divisors (see below), whose sum is σ = 1284640. Its totient is φ = 165024.

The previous prime is 522787. The next prime is 522811. The reversal of 522804 is 408225.

522804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919 + ... + 1374.

2⁵²²⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

522804 is an abundant number, since it is smaller than the sum of its proper divisors (761836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522804 is a wasteful number, since it uses less digits than its factorization.

522804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319 (or 2317 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 522804 is about 723.0518653596. The cubic root of 522804 is about 80.5587960823.

It can be divided in two parts, 522 and 804, that added together give a triangular number (1326 = T₅₁).

The spelling of 522804 in words is "five hundred twenty-two thousand, eight hundred four".